The "Domino" singer shaved off all of her hair on live TV for Comic Relief, a U.K.-based charity that is trying to end poverty.
"Shaving my head for charity is something I've promised to do for a long time, and Comic Relief has given me the opportunity to try and raise as much money as possible for good causes by doing it," the 24-year-old explained.
She continued: "I won't deny that I'm nervous, but I am also honored to be part of this year's campaign."
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